Mongodb 2.6 index error - “key too large to index”

[Erkan Örmeci]

We’ve started to use Mongodb version 2.6. When we try to create a text index, we have been facing an error occur which is “key too large to index”.

We did some search and we found: “Starting from version 2.6, MongoDB will not create an index if the value of existing index field exceeds the index key limit.” (http://www.tutorialspoint.com/mongodb/mongodb_indexing_limitations.htm)

We need to create an index on the textual content of every web page in a web site. How can we create text index with Mongodb version 2.6? Should we go back the previous version?

[Tim Hawkins]

Note, your previous version was not doing it either, it was just not telling you about it. When you say you are creating a text index, do you mean you are creating a normal index on a text field or are you using the specialised text indexing system built into 2.6+.  I belive in 2.6 you need to enable it, in 3.0 is on by default.

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